In recent reviews, we looked at the advancements in endpoint security, including new ways companies are employing technology like virtual machines to get a leg up on potential attackers. But despite impressive new defensive technologies, the bad guys still seem to be getting through.

According to security engineers we’ve talked with, the problem with network defense these days is two-fold. First, no matter how innovative the defensive technology deployed, it will eventually be breached or circumvented. And because most of the top attackers and groups collaborate, the tools and techniques used to successfully break down defenses are quickly shared.